# CVE-2026-31436

> Vulnerability · severity: **CRITICAL** (CVSS 9.8).

## Description

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()

At the end of this function, d is the traversal cursor of flist, but the
code completes found instead. This can lead to issues such as NULL pointer
dereferences, double completion, or descriptor leaks.

Fix this by completing d instead of found in the final
list_for_each_entry_safe() loop.

## Key facts

- **CVE ID:** CVE-2026-31436
- **Published:** 2026-04-22
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-31436

## Citation

> AI Analytics. CVE-2026-31436. Retrieved 2026-07-23 from https://api.ai-analytics.org/cve/CVE-2026-31436. Derived from NIST NVD. Licensed CC0.

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